12. (1) The meetings of the Board shall be held at such times and places as may be prescribed by regulations:
Provided that a meeting may also be otherwise convened by the Chairman when he so thinks fit.
(2) To constitute a quorum at a meeting of the Board not less than three Directors including the Chairman shall be present.
(3) At a meeting of the Board each Director shall have one vote, and in the event of an equality of votes, the Chairman shall have a second or casting vote.
(4) If, for any reason, the Chairman is unable to preside over a meeting, it shall be presided over by a Director nominated by the Chairman for the purpose, and in default of such nomination, by such Director as the Directors present may choose.